1013811512 has 48 divisors (see below), whose sum is σ = 2190530160. Its totient is φ = 430904448.

The previous prime is 1013811511. The next prime is 1013811529. The reversal of 1013811512 is 2151183101.

1013811512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1013811512² = 2055627563727452288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013811511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1081508 + ... + 1082444.

It is an arithmetic number, because the mean of its divisors is an integer number (45636045).

Almost surely, 2^1013811512 is an apocalyptic number.

It is an amenable number.

1013811512 is an abundant number, since it is smaller than the sum of its proper divisors (1176718648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1013811512 is an equidigital number, since it uses as much as digits as its factorization.

1013811512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 1013811512 is about 31840.4069069477. The cubic root of 1013811512 is about 1004.5828031657.

Adding to 1013811512 its reverse (2151183101), we get a palindrome (3164994613).

The spelling of 1013811512 in words is "one billion, thirteen million, eight hundred eleven thousand, five hundred twelve".